Passcode lock
This commit is contained in:
Yishi Lin
parent
fe80ed3dc8
commit
433562584e
6 changed files with 125 additions and 78 deletions
|
|
@ -1,29 +1,69 @@
|
|||
//
|
||||
// PasscodeLockViewController.swift
|
||||
// PasscodeLockPresenter.swift
|
||||
// PasscodeLock
|
||||
//
|
||||
// Created by Yanko Dimitrov on 8/28/15.
|
||||
// Copyright © 2015 Yanko Dimitrov. All rights reserved.
|
||||
// Created by Yishi Lin on 10/04/2018.
|
||||
// Copyright © 2018 Yishi Lin. All rights reserved.
|
||||
//
|
||||
// Inspired by SwiftPasscodeLock created by Yanko Dimitrov.
|
||||
//
|
||||
|
||||
import UIKit
|
||||
import LocalAuthentication
|
||||
|
||||
open class PasscodeLockViewController: UIViewController {
|
||||
open class PasscodeLockViewController: UIViewController, UITextFieldDelegate {
|
||||
|
||||
open var dismissCompletionCallback: (()->Void)?
|
||||
open var successCallback: (()->Void)?
|
||||
open var cancelCallback: (()->Void)?
|
||||
lazy var enterPasscodeAlert: UIAlertController = {
|
||||
let enterPasscodeAlert = UIAlertController(title: "Authenticate Pass", message: "Unlock with passcode for Pass", preferredStyle: .alert)
|
||||
|
||||
enterPasscodeAlert.addTextField(configurationHandler: {(_ textField: UITextField) -> Void in
|
||||
textField.placeholder = "passcode"
|
||||
textField.isSecureTextEntry = true
|
||||
textField.addTarget(self, action: #selector(self.passcodeTextFieldDidChange(_:)), for: UIControlEvents.editingChanged)
|
||||
textField.clearButtonMode = UITextFieldViewMode.whileEditing
|
||||
textField.becomeFirstResponder()
|
||||
})
|
||||
|
||||
weak var passcodeLabel: UILabel?
|
||||
weak var passcodeWrongAttemptsLabel: UILabel?
|
||||
weak var passcodeTextField: UITextField?
|
||||
weak var biometryAuthButton: UIButton?
|
||||
|
||||
var passcodeFailedAttempts = 0
|
||||
|
||||
open override func loadView() {
|
||||
super.loadView()
|
||||
|
||||
let passcodeLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 300, height: 40))
|
||||
passcodeLabel.text = "Enter passcode for Pass"
|
||||
passcodeLabel.font = UIFont.boldSystemFont(ofSize: 18)
|
||||
passcodeLabel.textColor = UIColor.black
|
||||
passcodeLabel.textAlignment = .center
|
||||
passcodeLabel.translatesAutoresizingMaskIntoConstraints = false
|
||||
self.view.addSubview(passcodeLabel)
|
||||
self.passcodeLabel = passcodeLabel
|
||||
|
||||
let passcodeWrongAttemptsLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 300, height: 40))
|
||||
passcodeWrongAttemptsLabel.text = ""
|
||||
passcodeWrongAttemptsLabel.textColor = UIColor.red
|
||||
passcodeWrongAttemptsLabel.textAlignment = .center
|
||||
passcodeWrongAttemptsLabel.translatesAutoresizingMaskIntoConstraints = false
|
||||
self.view.addSubview(passcodeWrongAttemptsLabel)
|
||||
self.passcodeWrongAttemptsLabel = passcodeWrongAttemptsLabel
|
||||
|
||||
let passcodeTextField = UITextField(frame: CGRect(x: 0, y: 0, width: 300, height: 40))
|
||||
passcodeTextField.borderStyle = UITextBorderStyle.roundedRect
|
||||
passcodeTextField.placeholder = "passcode"
|
||||
passcodeTextField.isSecureTextEntry = true
|
||||
passcodeTextField.clearButtonMode = UITextFieldViewMode.whileEditing
|
||||
passcodeTextField.delegate = self
|
||||
passcodeTextField.addTarget(self, action: #selector(self.passcodeTextFieldDidChange(_:)), for: UIControlEvents.editingChanged)
|
||||
self.view.backgroundColor = UIColor.white
|
||||
passcodeTextField.translatesAutoresizingMaskIntoConstraints = false
|
||||
self.view.addSubview(passcodeTextField)
|
||||
self.passcodeTextField = passcodeTextField
|
||||
|
||||
let biometryAuthButton = UIButton(type: .custom)
|
||||
biometryAuthButton.setTitle("", for: .normal)
|
||||
biometryAuthButton.setTitleColor(Globals.blue, for: .normal)
|
||||
biometryAuthButton.addTarget(self, action: #selector(bioButtonPressedAction(_:)), for: .touchUpInside)
|
||||
biometryAuthButton.isHidden = true
|
||||
biometryAuthButton.translatesAutoresizingMaskIntoConstraints = false
|
||||
self.view.addSubview(biometryAuthButton)
|
||||
self.biometryAuthButton = biometryAuthButton
|
||||
|
||||
let myContext = LAContext()
|
||||
var authError: NSError?
|
||||
|
|
@ -35,31 +75,50 @@ open class PasscodeLockViewController: UIViewController {
|
|||
biometryType = "Face ID"
|
||||
}
|
||||
}
|
||||
let bioAction = UIAlertAction(title: "Use " + biometryType, style: .default) { (action:UIAlertAction) -> Void in
|
||||
self.authenticate()
|
||||
}
|
||||
enterPasscodeAlert.addAction(bioAction)
|
||||
biometryAuthButton.setTitle(biometryType, for: .normal)
|
||||
biometryAuthButton.isHidden = false
|
||||
}
|
||||
}
|
||||
|
||||
return enterPasscodeAlert
|
||||
}()
|
||||
NSLayoutConstraint.activate([
|
||||
passcodeTextField.widthAnchor.constraint(equalToConstant: 300),
|
||||
passcodeTextField.heightAnchor.constraint(equalToConstant: 40),
|
||||
passcodeTextField.centerXAnchor.constraint(equalTo: self.view.centerXAnchor),
|
||||
passcodeTextField.centerYAnchor.constraint(equalTo: self.view.centerYAnchor, constant: -20),
|
||||
// above passocde
|
||||
passcodeLabel.widthAnchor.constraint(equalToConstant: 300),
|
||||
passcodeLabel.heightAnchor.constraint(equalToConstant: 40),
|
||||
passcodeLabel.centerXAnchor.constraint(equalTo: self.view.centerXAnchor),
|
||||
passcodeLabel.bottomAnchor.constraint(equalTo: passcodeTextField.topAnchor),
|
||||
// below passcode
|
||||
passcodeWrongAttemptsLabel.widthAnchor.constraint(equalToConstant: 300),
|
||||
passcodeWrongAttemptsLabel.heightAnchor.constraint(equalToConstant: 40),
|
||||
passcodeWrongAttemptsLabel.centerXAnchor.constraint(equalTo: self.view.centerXAnchor),
|
||||
passcodeWrongAttemptsLabel.topAnchor.constraint(equalTo: passcodeTextField.bottomAnchor),
|
||||
// bottom of the screen
|
||||
biometryAuthButton.widthAnchor.constraint(equalToConstant: 150),
|
||||
biometryAuthButton.heightAnchor.constraint(equalToConstant: 40),
|
||||
biometryAuthButton.centerXAnchor.constraint(equalTo: self.view.centerXAnchor),
|
||||
biometryAuthButton.bottomAnchor.constraint(equalTo: self.view.bottomAnchor, constant: -40),
|
||||
])
|
||||
|
||||
}
|
||||
|
||||
open override func viewDidLoad() {
|
||||
super.viewDidLoad()
|
||||
self.view.backgroundColor = UIColor.white
|
||||
}
|
||||
|
||||
open override func viewDidAppear(_ animated: Bool) {
|
||||
super.viewDidAppear(animated)
|
||||
authenticate()
|
||||
if let biometryAuthButton = biometryAuthButton {
|
||||
self.bioButtonPressedAction(biometryAuthButton)
|
||||
}
|
||||
}
|
||||
|
||||
internal func dismissPasscodeLock(completionHandler: (() -> Void)? = nil) {
|
||||
// clean up the textfield
|
||||
DispatchQueue.main.async {
|
||||
self.enterPasscodeAlert.textFields?[0].text = ""
|
||||
self.enterPasscodeAlert.dismiss(animated: false, completion: nil)
|
||||
self.passcodeTextField?.text = ""
|
||||
}
|
||||
|
||||
// pop
|
||||
|
|
@ -80,6 +139,8 @@ open class PasscodeLockViewController: UIViewController {
|
|||
// MARK: - PasscodeLockDelegate
|
||||
|
||||
open func passcodeLockDidSucceed() {
|
||||
passcodeFailedAttempts = 0
|
||||
passcodeWrongAttemptsLabel?.text = ""
|
||||
dismissPasscodeLock(completionHandler: successCallback)
|
||||
}
|
||||
|
||||
|
|
@ -87,7 +148,7 @@ open class PasscodeLockViewController: UIViewController {
|
|||
dismissPasscodeLock(completionHandler: cancelCallback)
|
||||
}
|
||||
|
||||
public func authenticate() {
|
||||
@objc public func bioButtonPressedAction(_ uiButton: UIButton) {
|
||||
let myContext = LAContext()
|
||||
let myLocalizedReasonString = "Authentication is needed to access Pass."
|
||||
var authError: NSError?
|
||||
|
|
@ -100,29 +161,30 @@ open class PasscodeLockViewController: UIViewController {
|
|||
// user authenticated successfully, take appropriate action
|
||||
self.passcodeLockDidSucceed()
|
||||
}
|
||||
} else {
|
||||
// User did not authenticate successfully
|
||||
self.showPasswordAlert()
|
||||
}
|
||||
}
|
||||
} else {
|
||||
// could not evaluate policy; look at authError and present an appropriate message to user
|
||||
self.showPasswordAlert()
|
||||
}
|
||||
} else {
|
||||
// fallback on earlier versions
|
||||
self.showPasswordAlert()
|
||||
}
|
||||
}
|
||||
|
||||
@objc func passcodeTextFieldDidChange(_ sender: UITextField) {
|
||||
// check whether the passcode is correct
|
||||
if PasscodeLock.shared.check(passcode: sender.text ?? "") {
|
||||
public override func textFieldShouldReturn(_ textField: UITextField) -> Bool {
|
||||
if textField == passcodeTextField {
|
||||
if !PasscodeLock.shared.check(passcode: textField.text ?? "") {
|
||||
passcodeFailedAttempts = passcodeFailedAttempts + 1
|
||||
if passcodeFailedAttempts == 1 {
|
||||
passcodeWrongAttemptsLabel?.text = "1 wrong attempt"
|
||||
} else {
|
||||
passcodeWrongAttemptsLabel?.text = "\(passcodeFailedAttempts) wrong attempts"
|
||||
}
|
||||
}
|
||||
}
|
||||
textField.resignFirstResponder()
|
||||
return true
|
||||
}
|
||||
|
||||
@objc public func passcodeTextFieldDidChange(_ textField: UITextField) {
|
||||
if PasscodeLock.shared.check(passcode: textField.text ?? "") {
|
||||
self.passcodeLockDidSucceed()
|
||||
}
|
||||
}
|
||||
|
||||
func showPasswordAlert() {
|
||||
self.present(enterPasscodeAlert, animated: true, completion: nil)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue